WO2020125781A1 - 广播信号接收装置以及广播信号接收方法 - Google Patents

广播信号接收装置以及广播信号接收方法 Download PDF

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Publication number
WO2020125781A1
WO2020125781A1 PCT/CN2019/127206 CN2019127206W WO2020125781A1 WO 2020125781 A1 WO2020125781 A1 WO 2020125781A1 CN 2019127206 W CN2019127206 W CN 2019127206W WO 2020125781 A1 WO2020125781 A1 WO 2020125781A1
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WIPO (PCT)
Prior art keywords
replacement
broadcast signal
signal receiving
broadcast
period
Prior art date
Application number
PCT/CN2019/127206
Other languages
English (en)
French (fr)
Inventor
安木成次郎
Original Assignee
青岛海信电器股份有限公司
东芝视频解决方案株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP2018238924A external-priority patent/JP7267004B2/ja
Priority claimed from JP2018238925A external-priority patent/JP7267005B2/ja
Priority claimed from JP2018238923A external-priority patent/JP7350484B2/ja
Application filed by 青岛海信电器股份有限公司, 东芝视频解决方案株式会社 filed Critical 青岛海信电器股份有限公司
Priority to CN201980031402.9A priority Critical patent/CN112204988B/zh
Publication of WO2020125781A1 publication Critical patent/WO2020125781A1/zh
Priority to US17/319,710 priority patent/US11431940B2/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/455—Demodulation-circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
    • H04N21/81—Monomedia components thereof
    • H04N21/812—Monomedia components thereof involving advertisement data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
    • H04N21/258—Client or end-user data management, e.g. managing client capabilities, user preferences or demographics, processing of multiple end-users preferences to derive collaborative data
    • H04N21/25866—Management of end-user data
    • H04N21/25891—Management of end-user data being end-user preferences
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/434—Disassembling of a multiplex stream, e.g. demultiplexing audio and video streams, extraction of additional data from a video stream; Remultiplexing of multiplex streams; Extraction or processing of SI; Disassembling of packetised elementary stream
    • H04N21/4347—Demultiplexing of several video streams
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/434—Disassembling of a multiplex stream, e.g. demultiplexing audio and video streams, extraction of additional data from a video stream; Remultiplexing of multiplex streams; Extraction or processing of SI; Disassembling of packetised elementary stream
    • H04N21/4348—Demultiplexing of additional data and video streams
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/438—Interfacing the downstream path of the transmission network originating from a server, e.g. retrieving MPEG packets from an IP network
    • H04N21/4383—Accessing a communication channel
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs
    • H04N21/44004—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs involving video buffer management, e.g. video decoder buffer or video display buffer
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs
    • H04N21/44016—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs involving splicing one content stream with another content stream, e.g. for substituting a video clip
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/45—Management operations performed by the client for facilitating the reception of or the interaction with the content or administrating data related to the end-user or to the client device itself, e.g. learning user preferences for recommending movies, resolving scheduling conflicts
    • H04N21/4508—Management of client data or end-user data
    • H04N21/4532—Management of client data or end-user data involving end-user characteristics, e.g. viewer profile, preferences
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/45—Management operations performed by the client for facilitating the reception of or the interaction with the content or administrating data related to the end-user or to the client device itself, e.g. learning user preferences for recommending movies, resolving scheduling conflicts
    • H04N21/462—Content or additional data management, e.g. creating a master electronic program guide from data received from the Internet and a Head-end, controlling the complexity of a video stream by scaling the resolution or bit-rate based on the client capabilities
    • H04N21/4622—Retrieving content or additional data from different sources, e.g. from a broadcast channel and the Internet
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
    • H04N21/85—Assembly of content; Generation of multimedia applications
    • H04N21/858—Linking data to content, e.g. by linking an URL to a video object, by creating a hotspot

Definitions

  • Embodiments of the present invention relate to a broadcast signal receiving device and a broadcast signal receiving method.
  • the receiving device that can be connected to the network has a function of displaying an addressable advertisement (alternative advertisement) (the advertisement is described as CM below).
  • This addressable advertisement displays the most consistent with the viewer's preference (actually the receiving device) Good advertising.
  • This display replacement CM function provides a separate service for each viewer of the receiving device. It should be noted that the above-mentioned viewer's preference can actually be called an attribute of the receiving device estimated based on the viewing history of the receiving device.
  • Patent Literature Japanese Special Publication No. 2002-518946
  • an object of the present embodiment is to provide a broadcast signal receiving apparatus and a broadcast signal receiving method, which can provide a CM that makes the relationship between the CM and the content of the viewing program (hereinafter referred to as content) more similar (high correlation).
  • the present application provides a broadcast signal receiving apparatus including: a receiving section that receives demodulated broadcast content; and a replacement CM period information acquisition section that plays a CM period during the period in which the broadcast content is played , Obtain replacement CM period information indicating a special distribution period; replacement CM storage memory, obtain and store the replacement CM associated with the broadcast content and viewer preference from the outside; the CM selection unit, based on the replacement CM period information, playing the replacement CM during the allocation of the replacement CM; and the control section, monitoring the remaining capacity of the CM saving memory, when storing the replacement CM in the CM saving memory, The replacement CM with high priority is stored.
  • the present application provides another broadcast signal receiving apparatus, which includes: a receiving unit that receives and demodulates broadcast content; and a replacement CM period information acquisition unit that acquires an instruction during a CM period during which the broadcast content is played Special replacement CM period information during distribution; replacement CM storage memory, externally obtains and stores replacement CM associated with the broadcast content and viewer preference; CM selection unit, based on the replacement CM period information , The replacement CM is played during the allocation of the replacement CM; and the control section monitors the remaining capacity of the CM saving memory and stores the priority when storing the replacement CM in the CM saving memory The high replacement CM.
  • the replacement CM is sent by an external server.
  • the replacement CM is sent by an external server according to the remaining capacity limit.
  • control unit monitors the remaining capacity of the CM storage memory, and when the remaining capacity is insufficient to store all the replacement CMs, stores the replacement CMs of high priority.
  • the present application provides another broadcast signal receiving apparatus, including: a receiving unit that receives and demodulates broadcast content; and a replacement CM period information obtaining unit that obtains an instruction during a CM period during the broadcast of the broadcast content Special replacement CM period information during distribution; replacement CM storage memory, externally obtains and stores replacement CM associated with the broadcast content and viewer preference; CM selection unit, based on the replacement CM period information , Playing the replacement CM during the allocation of the replacement CM; and the control section notifying the external server of the remaining capacity of the CM storage memory, and sending from the external server according to the remaining capacity limit
  • the replacement CM is stored in the CM storage memory.
  • control part notifies the external server of the remaining capacity of the CM storage memory, and stores the high-priority replacement CM stored in the plurality of replacement CMs sent from the external server. In the CM storage memory.
  • the present application provides a broadcast signal receiving method, which is applied to a control unit of a broadcast signal receiving apparatus.
  • the method includes: during a CM period during a period in which the broadcast content is played, acquiring an instruction indicating a special allocation period Replace the CM period information; collect and generate a viewing log of the viewing history of the broadcast content; obtain the replacement CM associated with the broadcast content from the external CM storage memory; based on the replacement CM period information, in the The replacement CM is selected for playback during distribution; and the remaining capacity of the CM storage memory is monitored, and when the replacement CM is stored in the CM storage memory, the replacement CM with a high priority is stored.
  • storing the high-priority replacement CM includes storing the high-priority replacement CM when the remaining capacity is insufficient to store all the replacement CMs.
  • the present application provides another broadcast signal receiving method, including: acquiring CM period information indicating a special distribution period during a CM period during which the broadcast content is played; collecting and generating and watching the broadcast The viewing log of the viewing history of the content; obtaining the replacement CM associated with the broadcast content from the external CM storage memory; based on the replacement CM period information, selecting the replacement CM for playback during the special distribution period And notifying the external server of the remaining capacity of the CM storage memory, and storing the number of replacement CMs that are limited and sent from the external server according to the remaining capacity in the CM storage memory;
  • storing the number of the replacement CMs that are limited and sent from the external server according to the remaining capacity in the CM storage memory may refer to sending the external server according to the remaining capacity limit
  • One or more of the replacement CMs are stored in the CM storage memory.
  • storing the number of the replacement CMs limited and sent from the external server according to the remaining capacity in the CM storage memory includes: The replacement CM storing a high priority among the number of replacement CMs that are limited and transmitted by the remaining capacity is stored in the CM storage memory. Storing the high-priority replacement CM out of the number of replacement CMs that are limited and sent from the external server according to the remaining capacity and stored in the CM storage memory may mean that the replacement CM will be sent from the external server The plurality of replacement CMs sent according to the remaining capacity limit are stored in the CM storage memory in order of priority.
  • a computer storage medium having instructions stored in the computer-readable storage medium, which when executed on a computer, causes the computer to execute the above fourth to fifth aspects or any of the fourth to fifth aspects The method described in a possible implementation.
  • a computer storage medium in which instructions are stored in a computer-readable storage medium, which when executed on a computer, causes the computer to perform the above fourth to fifth aspects or any of the fourth to fifth aspects The method described in a possible implementation.
  • a computer program product containing instructions, the computer program product storing instructions, which when executed on a computer, causes the computer to perform the above fourth to fifth aspects or the fourth to fifth aspects Any one of the possible implementation methods.
  • FIG. 1 is a diagram showing a configuration example of a replacement CM system including a broadcast signal receiving device according to an embodiment of the present invention
  • FIG. 2 is a diagram schematically showing a configuration example of a broadcasting station (broadcast signal transmission device);
  • 3 is a diagram schematically showing the configuration of a broadcast signal receiving device (unit) of the embodiment
  • FIG. 4 is a diagram showing a main part of a replacement CM system including a broadcast signal receiving device of an embodiment
  • FIG. 5 is a diagram showing a configuration example of some modules of FIG. 4 in further detail
  • FIG. 6 is a flowchart illustrating the cooperative operation of the broadcast signal receiving device 140 of FIG. 5 and the CM distribution server 120;
  • FIG. 7 is a sequence diagram for explaining the operation when the broadcast signal receiving device 140 of FIG. 5 presents content and recommends CM;
  • FIG. 8 is a sequence diagram illustrating the timing of switching the broadcast signal receiving apparatus of the present embodiment to the processing for presenting the recommended CM;
  • 9A is a configuration in the broadcast signal receiving device of the present embodiment, and is a diagram showing an example of a switching circuit for recommending CM and positive content;
  • 9B is a configuration in the broadcast signal receiving device of the present embodiment, and is a diagram showing another example of a switching circuit for recommending CM and positive content;
  • FIG. 10 is an explanatory diagram showing an example of a logic method for selecting recommended CM suitable for viewers in the system of the present embodiment.
  • FIG. 1 is a diagram showing a configuration example of a replacement CM system to which an embodiment of the present invention is applied.
  • the replacement CM system includes a broadcast station (broadcast signal transmission device) 100, a broadcast signal reception device 140, a CM distribution server 120, and a management server 121.
  • the broadcast signal receiving device 140 is used to receive a program broadcast by a broadcast station (broadcast signal transmitting device) 100, and includes a CM replacement device 330 (described later) of an embodiment of the present invention.
  • the broadcasting station 100 and the broadcast signal receiving device 140 are connected to the CM distribution server 120 (which may also be referred to as a CM insertion server) and the management server 121 via the network 130.
  • the broadcast signal receiving apparatus can be connected to the collaboration server through the network 130.
  • the broadcasting station 100 may be a base station that schedules programs and broadcasts the scheduled programs to the broadcast signal receiving device 140 through broadcast signals.
  • the broadcasting station 100 may also be referred to as a broadcast signal transmission device.
  • the broadcasting station 100 has a CM management server 101 that stores and manages the CM created by the CM company 110.
  • the broadcasting station 100 inserts and arranges the CM (Commercial Message) stored in the CM management server 101 into a broadcast program, and broadcasts (transmits) a broadcast signal to the broadcast signal receiving device 140 as a series of video streams and audio streams.
  • CM Common Message
  • the CM company 110 creates a CM based on a commission from a contract-based advertiser (refers to a client who commissions the CM company 110 for advertising production, etc.) 111, and registers the created CM with the broadcast station 100.
  • CM management server 101 for example creates a CM based on a commission from a contract-based advertiser (refers to a client who commissions the CM company 110 for advertising production, etc.) 111, and registers the created CM with the broadcast station 100.
  • the CM company 110 creates a CM based on a commission from a contract-based advertiser 111, and registers the created CM in the CM management server 101 of the broadcasting station 100, where the advertiser 111 refers to Clients who entrust CM company 110 to make advertisements, etc.
  • the broadcasting station 100 has a function of connecting to the network 130, and is connected to the CM distribution server 120 and the management server 121 through the network 130.
  • the CM distribution server 120 is a server that stores the replacement CM transmitted from the CM management server 101 connected through the network 130 and distributes the stored replacement CM in accordance with a request from the broadcast signal receiving device 140.
  • the replacement CM is sometimes sent from the CM company 110. That is, the CM distribution server 120 stores the replacement CM sent by the CM management server 101, and releases the stored replacement CM according to a request from the broadcast signal receiving device 140, wherein the CM distribution server 120 manages with the CM through the network 130
  • the server 101 is connected; in a feasible implementation manner, the replacement CM may also be sent by the CM company 110.
  • the management server 121 is a server for providing additional services associated with the program received by the broadcast signal receiving device 140. That is, the management server 121 is used to provide additional services associated with the program received by the broadcast signal receiving device 140.
  • the additional service provided by the management server 121 is, for example, a service for the broadcast signal receiving device 140 to replace a CM inserted in the middle of a program with a replacement CM and provide it to a user who is watching a certain program. That is, providing an additional service means providing the broadcast signal receiving device 140 with a CM period that can be replaced with a replacement CM.
  • the CM time period that can be replaced with the replacement CM provided by the management server 121 to the broadcast signal receiving device 140 is based on the replacement CM period information transmitted from the CM management server 101 of the broadcasting station 100. That is, the CM time period that can be replaced with the replacement CM can be determined based on the replacement CM period information sent from the CM management server 101. It should be noted that the replacement CM period information may be transmitted together with the broadcast signal, but may also be transmitted through the management server 121 and/or the CM distribution server 120.
  • the management server 121 has a function of collecting the viewing history of the broadcast signal receiving device 140.
  • the broadcast signal receiving device 140 replaces the CM inserted in the middle of the program with a replacement CM, and transmits it in the viewing history. That is, the broadcast signal receiving device 140 may record the actual situation in which the CM inserted in the middle of the program is replaced with a replacement CM in the viewing history, and send it to the management server 121.
  • the broadcast signal receiving device 140 is a receiving device that receives a program broadcasted by a broadcast signal from the broadcasting station 100.
  • the broadcast signal receiving device 140 has a function of connecting to the network 130 and is connected to the CM distribution server 120 through the network 130.
  • the broadcast signal receiving device 140 saves the replacement CM distributed from the CM distribution server 120 in the managed recording medium 160 (including the CM storage memory).
  • the broadcast signal receiving device 140 can set a connection with the management server 121 through the (for example) function setting screen of the broadcast signal receiving device 140.
  • the broadcast signal receiving device 140 (for example) can use the information required for connection with the management server 121, such as the unique information of the broadcast signal receiving device 140 (also referred to as device ID), by using the user to operate the function setting screen.
  • the family status of the user of the signal receiving device 140 (sex and age of the person constituting the family) and the like are registered in the management server 121.
  • the management server 121 can uniquely identify each broadcast signal receiving device 140 by, for example, the device ID of the broadcast signal receiving device 140.
  • the broadcast signal receiving device 140 registers information necessary for connection with the management server 121 through the function setting screen, and thus can receive various additional services related to the program received by the broadcast signal from the management server 121.
  • the broadcast signal receiving device 140 includes the CM replacement device of this embodiment.
  • the broadcast signal receiving device 140 has a function of selecting the best replacement CM from the replacement CM stored in the recording medium 160 by the CM replacement device and displaying it on the display screen. At this time, the broadcast signal receiving device 140 displays the selected best replacement CM in accordance with the time period in which the replacement CM sent from the management server 121 can be replaced, and can be adaptively provided to the viewer watching the program.
  • each broadcast signal receiving apparatus 140 is managed by the management server 121 by the device ID that each has.
  • FIG. 2 is a diagram schematically showing a configuration example of a broadcasting station (broadcast signal transmission device) 100.
  • the broadcasting station (broadcast signal transmission device) 100 encodes (also referred to as encode) video data, audio data, and the like of programs inserted and arranged in the CM stored in the CM management server 101 and transmits them as broadcast signals.
  • the data broadcast encoder 210 has a function of encoding the data broadcast data associated with the scheduled program.
  • the data broadcast encoder 210 encodes data for data broadcast.
  • the video encoder 211 has a function of encoding the video data of the scheduled program.
  • the video encoder 211 encodes the video data of the scheduled program.
  • the audio encoder 212 has a function of encoding the audio data of the scheduled program.
  • the audio encoder 212 encodes the audio data of the scheduled program.
  • the subtitle encoder 213 has a function of encoding subtitle data of the scheduled program.
  • the subtitle encoder 213 encodes the subtitle data of the programmed program.
  • the control information generating unit 214 has a function of generating TLV packets and control information of MMT.
  • the control information of the TLV packet refers to control information related to the multiplexing of the IP packet (also referred to as TLV-SI), and provides information for channel selection, correspondence information of the IP address and the service.
  • the MMT control information refers to control information related to the configuration of the MMT plug-in and the broadcast service (also called MMT-SI).
  • the control information generating unit 214 generates a signal including a TLV packet of control information and control information of MMT related to the program to be encoded by the audio encoder 212 and the video encoder 211.
  • the scrambler 215 has a function of cooperating with the CAS module 216 to scramble the encoded audio data output from the audio encoder 212 and the encoded video data output from the video encoder 211.
  • the CAS module 216 is a module that generates a key used when the scrambler 215 scrambles.
  • the multiplexer 217 has the following functions: a data broadcast stream generated by encoding the data broadcast encoder 210, a video stream generated by encoding the video data by the video encoder 211, and audio data encoded by the audio encoder 212
  • the generated audio stream, the subtitle stream generated by encoding the subtitle data by the subtitle encoder 213, and the control information generated by the control information generation unit 214 are multiplexed in the MMT/TLV method.
  • the multiplexer 217 generates a TLV stream that multiplexes the audio stream, video stream, TLV packet, and MMT control information.
  • the transmission unit 218 has a function of transmitting a broadcast signal composed of a TLV stream as a broadcast wave.
  • the transmission unit 218 performs transmission path coding processing such as 16APSK modulation and error correction coding on the TLV stream generated by the multiplexer 217 and transmits it as a broadcast wave.
  • FIG. 3 is a diagram schematically showing the configuration of a broadcast signal receiving device (unit) 140 using an embodiment of the present invention.
  • the broadcast signal receiving device 140 includes a basic function 341 as a receiving function for receiving broadcast signals and a control unit 342.
  • Basic functions 341 include: broadcast tuner 301, demultiplexer 302, descrambler 303, CAS module 304, data broadcast engine 305, video decoder 306, audio decoder 307, subtitle decoder 308, control information analysis unit 309 , GUI 320, and synthesizer 326.
  • the tuner 301 has a function of receiving a broadcast signal (TLV stream) transmitted by the broadcast signal.
  • the broadcast signal received by the tuner 301 is input to the demultiplexer 302.
  • the demultiplexer 302 has a function of separating the multiplexed TLV stream into a data broadcast stream, a video stream, an audio stream, a subtitle stream, and control information.
  • the demultiplexer 302 inputs the separated data broadcast stream, video stream, audio stream, data broadcast stream, and subtitle stream to the descrambler 303, and inputs the control information SI signal to the control information analysis unit 309.
  • the descrambler 303 has the following function: cooperates with the CAS module 304 to descramble the input data broadcast stream, video stream, audio stream, and subtitle stream.
  • the descrambler 303 inputs the descrambled data broadcast stream to the data broadcast engine 305, the video stream to the video decoder 306, the audio stream to the audio decoder 307, and the subtitle stream to the subtitle decoder 308.
  • the CAS module 304 has a function of generating a key used for descrambling by the descrambler 303.
  • the data broadcast engine 305 has a function of receiving the input data broadcast stream.
  • the data broadcast engine 305 converts the received data broadcast stream into display data and sends it to the synthesizer 326.
  • the data broadcast data transmitted to the synthesizer 326 is synthesized with video data and the like and displayed on the display unit 350.
  • the video decoder 306 has a function of decoding (Decode) the input video stream.
  • the video decoder 306 decodes the video stream and generates a signal to be displayed on the display unit 350.
  • the audio decoder 307 has a function of decoding the input audio stream.
  • the audio decoder 307 decodes the audio stream and generates a signal output to the speaker 351.
  • the subtitle decoder 308 decodes the subtitle stream and generates a signal to be displayed on the display unit 350.
  • the decoded video signal, subtitle signal, and data broadcast signal are synthesized by the synthesizer 326 and output to the display unit 350.
  • the decoded audio signal is output to the speaker 351.
  • the control information analysis unit 309 analyzes the SI signal which is control information of the broadcast signal. If the control information analysis unit 309 analyzes the SI signal, the analysis result is sent to the control unit 342.
  • the control unit 342 controls the overall operation of the broadcast signal receiving device 140. In addition, the control unit 342 keeps the CM replacement device 330 of the embodiment of the present invention inside and controls it. In addition, the control unit 342 also controls the network I/F 331 that is the I/F to the network 130 and the external input I/F 332 that is the connection I/F to the external device.
  • control unit 342 performs the following control: selects the best replacement CM most suitable for the viewer of the broadcast signal receiving device 140 from the replacement CM stored in the recording medium 160 according to the replacement control signal output by the CM replacement device 330, and The CM of the time period that can be replaced with the replacement CM received from the management server 121 is replaced and displayed as the selected replacement CM.
  • FIG. 4 is a diagram omitting the network system in the configuration of FIG. 1 and simplifying the configuration example of the replacement CM system.
  • the broadcasting device 100 transmits the broadcast content, the content ID, and the CM presentation timing (CM period information) to the broadcast signal receiving device (television receiver) 140.
  • the content ID is an ID that uniquely identifies the broadcast content
  • the CM presentation timing is a signal indicating the presentation time of the CM included in the broadcast content (also a signal indicating a time period in which the replacement CM can be inserted).
  • the CM period information may be sent via the management server 121 (through the network transceiving device 121-4 of the management server 121).
  • the CM period information does not determine that the replacement CM is actually inserted, and the broadcast signal receiving device 140 sometimes prompts (displays) the default CM included in the broadcast signal.
  • the broadcast signal reception device 140 transmits the content ID and the reception device ID of the broadcast signal reception device 140 itself to the CM distribution server 120.
  • the receiving device ID is an ID that uniquely identifies the broadcast signal receiving device 140. Therefore, the server 120 for CM distribution (for example, under the control of the system control unit 120-4) can also make a CM transmission request to the broadcast signal receiving device 140 based on the current receiving device ID.
  • the CM distribution server 120 transmits the CM information (recommended CM or replacement CM) generated based on the content ID and the receiving device ID to the broadcast signal receiving device 140.
  • the recommended CM refers to the CM presented to the viewer when the viewer of the receiving device having the receiving device ID watches the program (content) corresponding to the content ID.
  • the server 120 for CM distribution can acquire alternative CM period information that can be used independently from the broadcasting apparatus 100.
  • the recommended CM suitable for the content is preloaded and stored in the memory.
  • the recommended CM (replacement CM) temporarily stored in the memory is replaced with the original CM (CM allowed to replace the original CM time period) in the content (program) currently being received. That is, the recommended CM (replacement CM) temporarily stored in the memory may be used to replace the original CM in the content (program) currently being received, where the original CM may be the CM within the time period allowed to be replaced.
  • the program type, performer, viewing time, etc. watched by viewer A are stored as viewing logs, and the preference of viewer A is determined by analyzing the viewing log data. If the preference of viewer A is understood, it can be presumed that it may be suitable for the CM of viewer A. Based on the estimated information, the attribute information of the CM can be set. Therefore, the recommended CM estimated to be suitable for viewer A is not limited to one. Sometimes there are multiple. In this case, a priority order may be added to the recommended CM.
  • the broadcast signal receiving device 140 always sends viewing log data (for example, via the network transceiver 121-4 of the management server 121) to the viewing log database 121a, and the viewing log database 121a stores the viewing log of the broadcast signal receiving device 140.
  • the CM recommendation device 121b determines the attribute of the CM, it refers to the viewing log output from the viewing log database 121a.
  • CM attributes indicate the type of CM target product, CM performer, etc., and can be flexibly set by a business model.
  • the viewing log database 121a when the viewing history is a sports program, the viewer has a preference for sports. In this case, attributes such as the CM of sportswear, the CM of a baseball, or a football field can be associated with the program (content).
  • a part of the plurality of default CMs included in the positive film is replaced with the recommended CM during the CM replacement permission period.
  • CM replacement cannot be achieved due to the delay of the preload timing or the switching of the channel. That is, in some cases, due to the delay of the preloading timing or the switching of the channel, CM replacement cannot be achieved.
  • sponsors who recommend CM also want to know the viewing status of the recommended CM.
  • the broadcast signal receiving apparatus 140 reports to the CM presentation result management apparatus 121c whether the presentation of the CM acquired from the CM distribution server 120 succeeds or fails.
  • the broadcast signal receiving device 140 outputs the related information of the content ID and the receiving device ID to the CM distribution server 120 in advance.
  • the CM distribution server 120 can construct the receiving device and the content, and the relevant information of the corresponding CM.
  • the broadcast signal receiving device 140 transmits to the CM distribution server 120 the content ID and the receiving device ID of the content to start reception. This is to perform pre-loading quickly. There may be no time delay between the CM recommendation device 121b and the CM distribution server 120. In this case, the content ID and the receiving device ID may be transmitted to the CM distribution server 120 via the CM recommendation device 121b. That is, there may be no time delay between the CM recommendation device 121b and the CM distribution server 120 (or when the time extension is not considered), the content ID and the receiving device ID may also be sent to the CM through the CM recommendation device 121b Publish server 120.
  • FIG. 5 shows the alternative CM system of this embodiment in further detail.
  • the broadcast signal receiving device 140 receives and demodulates a broadcast signal through a broadcast receiving section 301-4 (including a tuner, etc.), and outputs a broadcast stream to the selection section 330a.
  • the management unit 342b that has received the device ID and the viewing content ID transmits the received content ID and receiving device ID to the server 120 for CM distribution.
  • the CM selection control unit 330d controls the selection unit 330a.
  • the network transceiver 331 receives the recommended CM (may also be referred to as a replacement CM) sent by the CM distribution server 120 and outputs it to the selection unit 330a.
  • the selection unit 330a stores (preloads) the recommended CM in the CM storage memory 330b based on the control signal from the CM selection control unit 330d.
  • the CM selection control unit 330d controls the CM holding memory 330b, the switch SW, and the FIFO unit (first-in first-out memory).
  • the CM selection control section 330d extracts CM period information including the CM replacement permission period from the service data of the demodulated broadcast signal.
  • the CM period information including the CM replacement permission period may be sent simultaneously with each program, or may be sent together with the program list in advance.
  • the CM period information including the CM replacement permission period may basically be sent from the management server 121 or may be sent from the CM insertion server 120.
  • the CM selection control unit 330d stores the CM period information, and if the CM replacement timing is approaching, the process of writing the replacement CM content into the FIFO unit 330e is also performed through the switch 330c. That is, in the FIFO unit 330e, the broadcast stream and the recommended CM stream are switched according to the CM switching timing. In addition, the CM selection control unit 330d reads the recommended CM stream from the FIFO unit 330e during the replacement period and decodes it in the decoder 315. The signal output from the FIFO unit 330e is presented to the display device 350 such as a liquid crystal panel via the decoder 315 and the drawing unit 316.
  • the broadcast signal receiving device 140 reads the CM period information including the CM replacement permission period together with the broadcast signal, but it may also be stored in advance for CM distribution for multiple contents
  • the CM period information including the CM replacement permission period can be stored in the CM distribution server in advance.
  • the CM distribution server 120 receives the content ID started by the broadcast signal receiving device 140, the CM distribution server 120 transmits CM period information including the CM replacement permission period to the corresponding broadcast signal reception device.
  • the system control device 342 performs control of the CM save memory 330b and collection control of the viewing logs (viewing log collection unit 342a), that is, the system control device 342 controls the CM save memory 330b and the viewing log collection unit 342a for viewing Control the collection of logs.
  • the viewing log is sent to the external viewing log database 121a.
  • the viewing log collection unit 342a can generate the judgment material for identifying the replacement CM based on the data of the viewing log of the broadcast content viewed.
  • the user can specify the attribute information of the replacement CM that needs to be intentionally avoided here.
  • the viewing log collection unit 342a may be provided in an external server (management server 121).
  • the system control device 342 performs overall operation control of the broadcast signal receiving device in accordance with the operation instruction of the external remote controller 360.
  • the broadcasting device 100 has a content database inside, that is, the content database is set inside the broadcasting device 100.
  • content A, content B, and content C are shown as an example.
  • the broadcasting device 100 selects any one of these contents by the selection unit 131, encodes by the encoder 132, multiplexes the CM timing information (CM period information) by the CM timing information multiplexing unit 134, and generates a transmission processing unit by broadcast signal generation 135 is transmitted as a broadcast signal (transmitted by the broadcast signal generation and transmission processing unit 135 in the form of a broadcast signal).
  • the management server 121 includes a system control unit 121-5, and the basic operations operate according to the commands of the control unit, that is, the management server 121 is controlled by the system control unit 121-5 through commands or realizes its functions through the system control unit 121-5 .
  • the management server 121 has a viewing log database 121a and a CM presentation result management device 121c.
  • the CM recommendation device 121b in the management server 121 includes an ID management unit 121-1 of a broadcast signal receiving device and a viewing tendency analysis unit 121-2.
  • the attribute information of the recommended CM (information including genre, performer, producer preference, etc., and a combination of these) is generated (121-3).
  • priority is given to attribute information of a plurality of recommended CMs.
  • the priority order is given in the order of viewing times, viewing times of similar content, and so on.
  • multiple recommended CMs set an upper limit on the number. That is, the priority order of a plurality of recommended CMs may be given through the attribute information, and the priority order may be sorted according to the number of times of viewing, the number of times of viewing similar content, and so on.
  • the viewing tendency (favorability) of the viewer is determined.
  • attribute information for example, genre, etc.
  • the viewing tendency database uses the viewing logs of each receiving device stored in the viewing log database to calculate the viewing tendency of each receiving device.
  • CM distribution server 120 a predetermined CM is selected in advance based on the content ID transmitted from the broadcast signal receiving device 140 and the recommended CM attribute corresponding to the content ID obtained from the CM recommendation device 121b.
  • the CM corresponding to content A and CMa1, CMa2, CMa3, the CM corresponding to content B and CMb1, CMb2, CMb3, and the CM corresponding to content C are associated with CMc1, CMc2, CMc3.
  • These associations are associated with the content IDs sent from the broadcast signal receiving device 140, that is, these associations can be implemented in correspondence with the content IDs sent from the broadcast signal receiving device 140. For example, when the ID of the content A is transmitted from the broadcast signal receiving device 140, by selecting the CM corresponding to the content A from CMa1, CMa2, and CMa3, the CM that should be issued to the broadcast signal receiving device 140 is determined.
  • the CM selection unit 120-1 selects a predetermined CM based on the content ID and the CM attribute, and transmits it to the broadcast signal receiving device 140 via the encoder 120-2 and the network transceiver 102-3.
  • FIG. 6 is a flowchart showing the relationship between the broadcast signal receiving device 140 and the CM distribution server 120.
  • the size of the CM storage memory 330b (which may be the current remaining capacity) is calculated (SA1).
  • the broadcast signal receiving device ID and the received content ID are sent to the CM distribution server 120 (SA2), and a plurality of desired recommended CMs are received and stored (SA3).
  • SA3 the size of the recommended CM is acquired, and a plurality of recommended CMs corresponding to the size of the storage memory 330b of the recommended CM calculated in advance are acquired.
  • the number of CMs is counted (SA3).
  • the server 120 for CM distribution transmits the recommended CM suitable for the broadcast signal receiving device and the content being received to the broadcast signal receiving device 140 in response to a request from the broadcast signal receiving device 140.
  • the broadcast signal receiving device 140 checks whether there is content switching (SA4). If there is a handover, return to SA1. In this case, the CM storage memory 330b (SA5) may be cleared, but a part of the recommended CM may also be retained.
  • SA6 When there is no content switching, it is monitored whether it is time to present the recommended CM (SA6). If the recommended time for the recommended CM is before the recommended time for the recommended CM, return to SA4. If it is time to prompt the recommended CM, it will play and prompt the recommended CM with higher priority (SA7). Next, it is checked whether the number of recommended CMs stored in the CM holding memory 330b is "0" (SA8). When the number of stored recommended CMs is "0", the CM replacement function ends (SA9). When the stored recommended CM remains, return to SA4 and wait until the time of the next CM period.
  • the broadcast signal receiving device 140 transmits the actual situation of the CM presentation result to the management server 121 (SA10).
  • the transmission content may be, for example, prompting all recommended CMs, or recommending CMs in the order of priority, or failing to prompt (the failure to prompt a full period of CMs), and so on.
  • FIG. 7 is a sequence diagram showing the operation of the viewer AU, the operation of the broadcast signal receiving device 140, the operation of the CM distribution server 120, and the like.
  • the broadcast signal receiving device 140 prompts the broadcast content of the selected broadcast station.
  • the broadcast signal receiving device 140 transmits the receiving device ID and the content ID to the CM distribution server 120, and starts preloading of the CM.
  • the viewer watches the main content of the broadcast content (AU2).
  • the pre-loaded CM is stored in the CM storage memory 330b, and is switched from the broadcast content presentation time dt1 to the CM stored in the CM storage memory 330b according to the CM start control time dt2 sent by the broadcasting apparatus 100, and a prompt to replace the CM is implemented.
  • the viewer performs CM viewing (AU3). Thereby, it becomes the state of CM presentation time dt3.
  • the presentation of the CM from the CM storage memory 330b is ended, and by returning to the presentation time dt5 of the broadcast content, the replacement CM operation is completed.
  • the viewer watches the main content of the broadcast content (AU4).
  • the CM presentation result management device 121c is notified of the CM presentation result according to the operation described in FIG. 6.
  • the broadcast signal receiving device 140 prepares the next CM presentation (preparation time dt7 for the next CN presentation), and sets the next presentation with a higher priority from the CM storage memory 330b Replacement of CM.
  • the broadcasting device 100 transmits the time stamp of the broadcast content included in the broadcast signal.
  • the broadcasting apparatus 100 transmits the information indicated by the relative time from the start time of the content at the presentation timing of the CM based on the time stamp.
  • the broadcast signal receiving apparatus 140 synchronizes the internal counter with the time stamp from the broadcast apparatus 100, where the internal counter may also be referred to as an internal timer, and may be used to achieve time stamp synchronization. Then, the internal counter is counted, and when the relative time is reached as the presentation timing of the CM (video switching time point dt), a switching timing signal is generated. This timing (time) corresponds to the CM start control time dt2 of the switching of the video in FIG. 7. In this operation, since time synchronization of the internal counter of the broadcast signal receiving device 140 and the time stamp of the broadcast device 100 is performed, it is possible to perform switching with high accuracy. Through the same action, the CM end control time dt4 is also realized, that is, in a similar manner, the CM end control time dt4 can also be determined, and a corresponding signal is generated.
  • the switching action can be determined (whether or not to perform) by comparing the image switching time point dt with the value contained in the replacement CM period information. Thus, it is possible to arbitrarily control whether to output the default CM included in the positive film or to output the replacement CM.
  • the broadcast signal is decoded by the path of the switch 330c, the FIFO section 330e, and the decoder 315 during a period other than the replacement CM period. Since the switching control of the switch 330e is performed, during the replacement of the CM, the CM selection control section 330d performs control so that the CM content read from the CM storage memory 330b is written into the FIFO section 330e and read out.
  • the CM selection control section 330d performs control so that the broadcast content included in the broadcast signal is written into the FIFO section 330e and read out.
  • the control unit 342 controls the start of the operation of the FIFO unit 330e and the decoding operation of the decoder 315.
  • the CM selection control unit 330d controls the switch SW based on the CM start control information and the CM end control information.
  • the CM start control information and the CM end control information are information read out from the replacement CM period information in chronological order.
  • the same decoder 315 performs the decoding of the positive film of the replacement CM and the broadcast content.
  • the embodiment of FIG. 9B prepares a decoder that decodes the broadcast content and the replacement CM.
  • the decoders 315A and 315B operate in frame synchronization.
  • the decoder 315A sequentially decodes the broadcast content. Therefore, the default CM included in the broadcast content is also decoded and output. On the other hand, the decoder 315B decodes the content of the replacement CM read from the CM storage memory 330b.
  • the CM selection control unit 330d may decode the replacement CM one frame or several frames in advance, and loop through the frame memory (not shown). Moreover, the switch 330g can be controlled based on the CM start control information and the CM end control information to realize CM replacement.
  • FIG. 10 shows a case where a preferred CM is assigned to content in the CM distribution server 120.
  • the CMa1, CMa2, and CMa3 of the CM are associated, and in the content B, the CMb1, CMb2, and CMb3 of the CM are associated.
  • CMa1 is attribute 1 (sports)
  • CMa2 is attribute 2 (vehicle)
  • CMa3 is attribute 3 (clothing).
  • attribute 1 (sports) is subdivided and associated with attribute 11 (golf), attribute 12 (baseball), and attribute 13 (football).
  • attribute 2 (vehicle) is also subdivided and associated with attribute 21 (car), attribute 22 (bicycle), and attribute 23 (railway).
  • attribute 3 (clothing) is also subdivided and associated with attribute 31 (adult male), attribute 32 (adult female), and attribute 33 (child).
  • CMb1, CMb2, and CMb3 of content B are also related.
  • the CM associated with content A is associated with the CM associated with content that becomes a topic in content A.
  • content A for example, there is the following story: an appearance character X who likes sports uses a luxury car to chase a player Y to the stadium.
  • the character X presents various clothes to the player Y.
  • the viewer AU receives the content A and starts watching.
  • the attribute of the receiving device of the viewer AU recommends the attribute 13, that is, based on the information such as the viewing log associated with the viewer AU, it corresponds to the viewer AU
  • the receiving device recommends attribute 13.
  • the CM distribution server 120 the content ID (corresponding to content A) to be watched from the receiving device of the viewer AU and the replacement CM corresponding to the attribute 13 to the receiving device of the viewer AU when transmitting and receiving the device ID Sending, that is, sending the content ID and the receiving device ID and the replacement CM corresponding to the attribute 13 to the receiving device corresponding to the viewer AU.
  • the above-mentioned case is a CM related to football, for example, CM used for football clothing, shoes, balls, football fields, etc.
  • the replacement CM associated with the broadcast content is selected from the viewer's preference based on the analysis result of the viewing history of the broadcast content and the CM that has similarity to the preference (which may be high similarity or close distance) Determine, that is, determine the substitution associated with the broadcast content from the viewer's preference based on the analysis result of the viewing history of the broadcast content, and the CM that has similarity (may be high similarity or close distance) to the preference CM.
  • ⁇ viewpoint A> (A1) is characterized by including: a receiving unit 301-4, which receives and demodulates broadcast content; and a viewing log collection unit 342a, which generates a viewing of the broadcast content.
  • the replacement CM period information acquisition unit during the CM period in which the broadcast content is played, acquires the replacement CM period information indicating the special distribution period;
  • the CM save memory 330b acquires the replacement associated with the broadcast content from the outside CM; and switch 330c, based on the replacement CM period information, the replacement CM is selected for playback during the special allocation period, the replacement CM uses the viewing history, based on the viewing tendency and the attributes of the CM Priority is given to the similarity, that is, the replacement CM is determined based on the viewing history, and the priority of the replacement CM is given based on the similarity between the viewing tendency and the attributes of the CM.
  • the analysis result of the viewing log output from the broadcast signal receiving device can be used to analyze the viewing tendency of each broadcast signal receiving device, and the CM of the broadcast signal receiving device can be selected and provided. That is, by performing the distance calculation (analysis of similarity) between the viewing tendency analyzed and the attribute information of the CM, advertisement presentation with high priority is implemented. In addition, the similarity (similarity) between the attribute information of the CM and the attributes of the broadcast content (positive film) is judged, and the replacement CM is presented to each receiving device, so it is possible to provide a replacement CM more suitable for the viewer (for example, refer to FIG. 10) .
  • the broadcast content (positive film) can be associated with the CM that can be presented, that is, the actually played CM can be associated with the broadcast content (positive film).
  • the provider of CM since the CM that should be presented is recommended among the CMs associated with the positive content, Therefore, the provider of CM can easily reflect the intention of advertisement, that is, the provider of CM can easily reflect the intention of advertisement.
  • the distance between the attribute information of the CM and the attribute information on the viewer's side calculated based on the viewing tendency based on the viewing log is calculated (similarity determination), and based on the similarity, CM replacement, addition, deletion, etc. can be flexibly handled .
  • the replacement timing of CM can be selected. That is, the timing of the next replacement CM can also be set according to the scene of the broadcast content. For example, when the content of the scene is the content of tasting luxury cuisine in the restaurant, the replacement CM of the restaurant in the street where the viewer is located can be inserted. However (further), when knowing favorite dishes and disliked foods based on questionnaires obtained from viewers, etc., it is possible to provide alternative CMs for restaurants serving favorite foods.
  • the CM period information acquisition section acquires the replacement CM period information from an external server.
  • the replacement CM acquisition unit acquires a plurality of replacement CMs to which playback priority is given.
  • the replacement CM associated with the broadcast content is based on the viewer's preference from the analysis result based on the viewing history of the broadcast content, and has the preference associated with the preference Determined in the CM of the attribute, that is, determined from the CM of the viewer's preference based on the analysis result of the viewing history of the broadcast content and the attributes (which may be high similarity or close distance) associated with the preference
  • the replacement CM associated with the broadcast content is based on the viewer's preference from the analysis result based on the viewing history of the broadcast content, and has the preference associated with the preference Determined in the CM of the attribute, that is, determined from the CM of the viewer's preference based on the analysis result of the viewing history of the broadcast content and the attributes (which may be high similarity or close distance) associated with the preference.
  • ⁇ Viewpoint B> (B1)
  • the control switch 330c is controlled by the CM selection control section 330d to select either the replacement CM or the positive film .
  • the CM selection control unit 330d operates based on the replacement CM period information.
  • the switch 330c selects the replacement CM for playback during the special distribution period.
  • the internal counter of the broadcast signal receiving device 140 is synchronized with the relative time stamp (relative time information) transmitted along with the broadcast content.
  • the CM selection control unit 330d is a device or method that starts the prompt of the replacement CM when the value of the internal counter reaches the replacement CM start time of the replacement CM period information, and the internal counter When the value of the replacement CM period information reaches the replacement CM end time, the prompt of the replacement CM ends. That is, when the value of the internal counter reaches the replacement CM start time of the replacement CM period information, the prompt starts to replace the CM; When the value of the internal counter reaches the replacement CM end time of the replacement CM period information, it is prompted to end the replacement CM.
  • a method of receiving a moving image from the server and presenting it may be considered, but the image becomes discontinuous during the switching and significantly deteriorates.
  • the switching timing uses an internal counter synchronized by the broadcast transmission side and the receiver side implemented by the existing digital broadcasting, so the accuracy of the switching timing can be improved.
  • the management server 121 or the CM distribution (insert) server 120 is notified of the capacity of the CM storage memory 330b. This notification may be performed by the CM selection control unit 330d, or may be performed by the system control unit 342.
  • the CM selection control section 330d or the system control section 342 may stop (suspend) the preloading .
  • the management server 121 or the CM release (insert) server 120 may be notified (to) the management server 121 or the CM release (insert) server 120 one by one by the CM selection control unit 330d or the system control unit 342, and the management server 121 or the CM release (insert) server 120 may determine Stop of preload (abort). This is effective when many replacement CMs are prepared in the replacement CM distribution server 120.
  • the replacement CM period information acquisition unit acquires the replacement CM associated with the broadcast content from outside, but before this acquisition, the network transmission and reception unit 331 stores the CM in memory
  • the current remaining capacity of 330b is sent to the server 120 for CM distribution.
  • the server 120 for CM distribution is a device or method that, when there are multiple replacement CMs that should be presented to the broadcast signal receiving device 140, the content of the replacement CM that matches the current remaining capacity is transmitted in order of priority from highest to bottom Give broadcast signal receiving device 140.
  • the broadcast signal receiving device 140 includes: a receiving unit that receives and demodulates broadcast content; and a replacement CM period information acquisition unit that acquires a replacement CM period indicating a special allocation period during the CM period during the period of playing the broadcast content Information; and a replacement CM storage memory, which externally obtains and stores a replacement CM associated with the broadcast content and associated with viewer preference. There is also a CM selection unit that plays the replacement CM during the allocation period of the replacement CM based on the replacement CM period information.
  • a control unit is provided. The control unit monitors the remaining capacity of the CM storage memory before acquiring the replacement CM, and when storing the replacement CM in the CM storage memory, the storage priority is high.
  • the replacement CM is provided.
  • CMs when storing a plurality of CMs as moving image content, a large-capacity memory is required.
  • a small-capacity memory can be used by preloading the server when switching channels.
  • by measuring the size of the storage memory on the side of the broadcast signal receiving device in advance it is possible to flexibly set the number of stored advertisements and easily realize it.
  • the presentation of the advertisement obtained by the server fails, but at this time, the advertisement that originally inserted the broadcast content is presented (played), so that the deterioration of the viewer's image quality does not occur.
  • the sending side receives the notification of the success or failure of the advertisement, so it is easy to build a business model. Although this method is such a best-effort method, the dynamic image will not be degraded and will not be harmful to the viewer.
  • the priority of replacing the CM can also be given according to the intention of the CM company and the CM provider. For example, it is possible to prioritize the CM that the viewer of a specific program wants to watch. In addition, the priority can also be adjusted according to the season.
  • (C3) That is, by notifying the external server of the remaining capacity of the CM storage memory, the external server transmits information related to the process of replacing the CM, and the receiving side operates based on the information related to the process. For example, only the replacement CM with high priority is stored, or the default CM included in the broadcast signal is played without storing the replacement CM.
  • the broadcast station (broadcast signal transmission device) 100 transmits a broadcast wave multiplexed by the MMT/TLV method 1.
  • the broadcast signal receiving device 140 receives the broadcast wave multiplexed by the MMT/TLV method, but it may be a case where the broadcast wave is multiplexed by the MPEG-2 method.
  • the broadcasting station (broadcast signal transmission device) 100 may distribute the program content to the broadcast signal reception device 140 via the network 130. That is, the broadcast content described in the present invention may be a broadcast content transmitted by network TV broadcast (IP broadcast) in addition to the ground wave and the satellite wave.
  • IP broadcast network TV broadcast
  • the configuration example of the addressable advertisement system shown in FIG. 1 is an example in which only one broadcast signal receiving device 140 is included, but it may include a plurality.
  • the management server 121 can identify and manage a plurality of broadcast signal receiving devices 140 by using the device ID of each broadcast signal receiving device 140.
  • the CM replacement device 330 that has described the embodiment of the present invention is included (installed) in the broadcast signal receiving device 140, but may also be included (installed) in the communication with the broadcast signal receiving device 140 and each device can be identified by its device ID In a separate device of the broadcast signal receiving device 140.
  • the separate device may be the management server 121.
  • any one of the management server 121, the CM distribution server 120, and the like may prepare the CM replacement permission period information (the CM replacement timing information).
  • the broadcast signal receiving device 140 may have a function capable of prohibiting CM replacement processing by user operation.
  • a function of displaying, for example, a representative image on the display unit 350 in place of the CM may be provided.
  • the user can specify "Allow CM replacement", "Not allow CM replacement", and the like for each representative image by using the operation buttons through the operation.
  • a function of displaying a message that there is a replacement CM may be set when displaying the replacement CM.

Abstract

提供广播信号接收装置以及广播信号接收方法，能够提供使CM与收看节目内容更具有相似性的关系的CM。本实施方式的广播信号接收装置具备：接收部，接收并解调广播内容；替换CM时段信息获取部，在播放所述广播内容的期间内的CM期间，获取指示特别的分配期间的替换CM时段信息；替换CM获取部，从外部获取与所述广播内容相关联的至少一个替换CM；以及CM选择部，基于所述替换CM时段信息，在所述替换CM的所述分配期间播放所述替换CM。

Description

广播信号接收装置以及广播信号接收方法
本申请要求在2018年12月20日提交、申请号为2018-238923、2018-238924、2018-238925的三件日本专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明的实施方式涉及广播信号接收装置以及广播信号接收方法。
背景技术
在能够连接到网络的接收装置中具备显示可寻址广告(替换广告)(广告以下记载为CM)的功能，该可寻址广告显示与收看者的喜好性(实际为接收装置)一致的最佳广告。这种显示替换CM的功能对接收装置的每个收看者进行单独服务。需要说明的是，上述收看者的喜好性实际上可以称为根据接收装置的收看历史记录推测的接收装置的属性。
专利文献：日本特表2002-518946号公报
需要用于使替换CM更有效的进一步的技术。例如，即使了解收看者的喜好，能够推测应当向该收看者推荐的推荐CM，但是如果推荐CM内容与广播节目(内容)的内容不匹配，则反而收看者有时有意回避替换CM。例如，存在多个推荐CM时，也设想发布与广播节目(内容)不一致的CM。
因此，本实施方式的目的在于提供广播信号接收装置以及广播信号接收方法，能够提供使CM与收看节目(以下称为内容)内容更具有相似性(高关联性)的关系的CM。
发明内容
第一方面，本申请提供了一种广播信号接收装置，该广播信号接收装置具备：接收部，接收解调广播内容；替换CM时段信息获取部，在播放所述广播内容的期间内的CM期间，获取指示特别的分配期间的替换CM时段信息；替换CM保存存储器，从外部获取并存储与所述广播内容相关联且与收看者喜好性相关联的替换CM；CM选择部，基于所述替换CM时段信息，在所述替换CM的所述分配期间播放所述替换CM；以及控制部，监视所述CM保存存储器的剩余容量，在将所述替换CM存储在所述CM保存存储器中时，存储优先级高的所述替换CM。
第二方面，本申请提供了另一种广播信号接收装置，具备：接收部，接收并解调广播内容；替换CM时段信息获取部，在播放所述广播内容的期间内的CM期间，获取指示特别的分配期间的替换CM时段信息；替换CM保存存储器，从外部获取并存储与所述广播内容相关联且与收看者喜好性相关联的替换CM；CM选择部，基于所述替换CM时段信息，在所述替换CM的所述分配期间播放所述替换CM；以及控制部，监视所述CM保存存储器的剩余容量，在将所述替换CM存储在所述CM保存存储器中时，存储优先级高的所述替换CM。
在一种可能的实现方式中，所述替换CM由外部服务器发送。
在一种可能的实现方式中，所述替换CM由外部服务器根据所述剩余容量限制发送。
在一种可能的实现方式中，控制部，监视所述CM保存存储器的剩余容量，在所述剩 余容量不足以存储所有替换CM时，存储高优先级的所述替换CM。
第三方面，本申请提供了另一种广播信号接收装置，具备：接收部，接收并解调广播内容；替换CM时段信息获取部，在播放所述广播内容的期间内的CM期间，获取指示特别的分配期间的替换CM时段信息；替换CM保存存储器，从外部获取并存储与所述广播内容相关联且与收看者喜好性相关联的替换CM；CM选择部，基于所述替换CM时段信息，在所述替换CM的所述分配期间播放所述替换CM；以及控制部，将所述CM保存存储器的剩余容量通知外部服务器，并且将从所述外部服务器根据所述剩余容量限制发送来的所述替换CM存储在所述CM保存存储器中。
在一种可能的实现方式中，控制部，将所述CM保存存储器的剩余容量通知外部服务器，并且将从所述外部服务器发送来的多个所述替换CM中高优先级的所述替换CM存储在所述CM保存存储器中。
第四方面，本申请提供了一种广播信号接收方法，应用于广播信号接收装置的控制部，所述方法包括：在播放所述广播内容的期间内的CM期间，获取指示特别的分配期间的替换CM时段信息；收集生成收看了所述广播内容的收看历史记录的收看日志；从外部向CM保存存储器获取与所述广播内容相关联的替换CM；基于所述替换CM时段信息，在所述分配期间选择所述替换CM用作播放；以及监视所述CM保存存储器的剩余容量，在将所述替换CM存储在所述CM保存存储器中时，存储优先级高的所述替换CM。
在一种可能的实现方式中，存储优先级高的所述替换CM，包括：在所述剩余容量不足以存储所有替换CM时，存储高优先级的所述替换CM。
第五方面，本申请提供了另一种广播信号接收方法，包括：在播放所述广播内容的期间内的CM期间，获取指示特别的分配期间的替换CM时段信息；收集生成收看了所述广播内容的收看历史记录的收看日志；从外部向CM保存存储器获取与所述广播内容相关联的替换CM；基于所述替换CM时段信息，在所述特别的分配期间选择所述替换CM用作播放；以及将所述CM保存存储器的剩余容量通知外部服务器，并且将从所述外部服务器根据所述剩余容量限制并发送来的数量的所述替换CM存储在所述CM保存存储器中。其中，将从所述外部服务器根据所述剩余容量限制并发送来的数量的所述替换CM存储在所述CM保存存储器中，可以是指将所述外部服务器根据所述剩余容量限制发送来的一个或多个所述替换CM存储在所述CM保存存储器中。
在一种可能的实现方式中，将从所述外部服务器根据所述剩余容量限制并发送来的数量的所述替换CM存储在所述CM保存存储器中，包括：将从所述外部服务器根据所述剩余容量限制并发送来的数量的所述替换CM中存储高优先级的所述替换CM存储在所述CM保存存储器中。将从所述外部服务器根据所述剩余容量限制并发送来的数量的所述替换CM中存储高优先级的所述替换CM存储在所述CM保存存储器中，可以是指将从所述外部服务器根据所述剩余容量限制发送来的多个所述替换CM，按照优先级次序存储在所述CM保存存储器中。
第六方面，提供一种计算机存储介质，所述计算机可读存储介质中存储有指令，当其在计算机上运行时，使得计算机执行上述第四至第五方面或第四至第五方面的任意一种可能的实现方式中所述的方法。
第七方面，提供一种计算机存储介质，所述计算机可读存储介质中存储有指令，当其 在计算机上运行时，使得计算机执行上述第四至第五方面或第四至第五方面的任意一种可能的实现方式中所述的方法。
第八方面，提供一种包含指令的计算机程序产品，所述计算机程序产品中存储有指令，当其在计算机上运行时，使得计算机执行上述第四至第五方面或第四至第五方面的任意一种可能的实现方式中所述的方法。
附图说明
图1是示出包括本发明的实施方式的广播信号接收装置的替换CM系统的构成例的图；
图2是示意性示出广播站(广播信号发送装置)的构成例的图；
图3是示意性示出实施方式的广播信号接收装置(单元)的构成的图；
图4是示出提取包括实施方式的广播信号接收装置的替换CM系统的主要部分的图；
图5是进一步详细示出图4的一部分模块的构成例的图；
图6是为了说明图5的广播信号接收装置140与CM发布用服务器120的协同动作而示出的流程图；
图7是为了说明图5的广播信号接收装置140提示内容和推荐CM时的动作而示出的时序图；
图8是说明本实施方式的广播信号接收装置切换为用于提示推荐CM的处理的时机的时序图；
图9A是本实施方式的广播信号接收装置内的构成，是示出推荐CM和正片内容的切换电路的例子的图；
图9B是本实施方式的广播信号接收装置内的构成，是示出推荐CM和正片内容的切换电路的另一例的图；
图10是示出在本实施方式的系统中用于选择适合于收看者的推荐CM的逻辑方法的一个例子的说明图。
具体实施方式
以下，参照附图，对实施方式进行说明。
图1是示出应用本发明的实施方式的替换CM系统的构成例的图。替换CM系统包括：广播站(广播信号发送装置)100、广播信号接收装置140、CM发布用服务器120以及管理服务器121。广播信号接收装置140用于接收广播站(广播信号发送装置)100广播的节目，并且包括本发明的实施方式的CM替换装置330(后述)。广播站100以及广播信号接收装置140通过网络130与CM发布用服务器120(也可以称为CM插入服务器)以及管理服务器121连接。此外，广播信号接收装置可以通过网络130与协作服务器连接。
广播站100可以是基站，该基站编排节目并把编排的节目通过广播信号广播给广播信号接收装置140。广播站100也可以被称为广播信号发送装置。
广播站100具有保存并管理CM公司110制作的CM的CM管理服务器101。广播站100将保存在CM管理服务器101中的CM(Commercial Message)插入并编排到广播的节目中，作为一系列的影像流以及音频流，通过广播信号广播(发送)给广播信号接收装置140。需要说明的是，CM公司110(例如)根据来自基于合同的广告主(是指委托CM公司110进行广告制作的客户等)111的委托来制作CM，并且将制作的CM注册到广播站100的CM 管理服务器101中。即，在一种实现方式中，CM公司110根据来自基于合同的广告主111的委托来制作CM，并且将制作的CM注册到广播站100的CM管理服务器101中，其中，广告主111是指委托CM公司110进行广告制作的客户等。
此外，广播站100具有与网络130连接的功能，通过网络130与CM发布用服务器120以及管理服务器121连接。
CM发布用服务器120是如下服务器：存储通过网络130连接的CM管理服务器101发送的替换CM，并根据来自广播信号接收装置140的请求来发布存储的替换CM。替换CM有时从CM公司110发送。即，CM发布用服务器120，存储CM管理服务器101发送的替换CM，并根据来自广播信号接收装置140的请求来发布存储的替换CM，其中，所述CM发布用服务器120通过网络130与CM管理服务器101相连；在一种可行实现方式中，替换CM也可以由CM公司110发送。
管理服务器121是用于提供与广播信号接收装置140接收的节目关联的附加服务的服务器。即，管理服务器121用于提供与广播信号接收装置140接收的节目关联的附加服务。管理服务器121提供的附加服务例如是如下服务：用于广播信号接收装置140能够将插入节目中途的CM置换为替换CM，并提供给正在收看某节目的用户。即，提供附加服务是指把能够置换为替换CM的CM时间段提供给广播信号接收装置140。能够置换为管理服务器121向广播信号接收装置140提供的替换CM的CM时间段基于从广播站100的CM管理服务器101发送来的替换CM时段信息。即，能够置换为替换CM的CM时间段可以基于CM管理服务器101发送来的替换CM时段信息来确定。需要说明的是，替换CM时段信息可以与广播信号一起发送，但是也可以通过管理服务器121和/或CM发布用服务器120发送。
此外，管理服务器121具有收集广播信号接收装置140的收看历史记录的功能。广播信号接收装置140使插入节目中途的CM置换为替换CM的实际情况包含在收看历史记录中并发送。即，广播信号接收装置140可以将插入节目中途的CM被置换为替换CM的实际情况记录在收看历史记录中，并发送给管理服务器121。
广播信号接收装置140是接收从广播站100通过广播信号广播的节目的接收装置。此外，广播信号接收装置140具有与网络130连接的功能，通过网络130与CM发布用服务器120连接。广播信号接收装置140将从CM发布用服务器120发布的替换CM保存在管理的记录介质160(包括CM保存存储器)中。
此外，为了接收与广播的节目相关的附加服务，广播信号接收装置140通过广播信号接收装置140的(例如)功能设定画面，能够设定与管理服务器121的连接。广播信号接收装置140(例如)通过用户对功能设定画面进行操作，能够将与管理服务器121的连接所需要的信息、例如广播信号接收装置140的固有信息(也称为设备ID)、使用广播信号接收装置140的用户的家庭状況(构成家庭的人的性别和年龄)等注册到管理服务器121。由此，管理服务器121(例如)通过广播信号接收装置140的设备ID，能够唯一地识别每台广播信号接收装置140。
由此，广播信号接收装置140通过功能设定画面来注册用于与管理服务器121的连接所需要的信息，由此能够从管理服务器121接收与广播信号接收的节目关联的各种附加服务。
此外，广播信号接收装置140包括本实施方式的CM替换装置。广播信号接收装置140 具有如下功能：通过CM替换装置，从保存在记录介质160中的替换CM中选择最佳替换CM，并显示在显示画面中。此时，广播信号接收装置140通过配合能够置换为从管理服务器121发送来的替换CM的时间段来显示选择的最佳替换CM，能够自适应地提供给收看节目的收看者。
需要说明的是，图1的例子仅是广播信号接收装置140为一个的情况，但是并不限于一个。当存在多个广播信号接收装置140时，各广播信号接收装置140通过各自具有的设备ID由管理服务器121进行管理。
图2是示意性示出广播站(广播信号发送装置)100的构成例的图。广播站(广播信号发送装置)100对插入并编排在存储于CM管理服务器101的CM中的节目的影像数据、音频数据等进行编码(也称为encode)，并且作为广播信号进行发送。
数据广播编码器210具有对与编排的节目关联的数据广播的数据进行编码的功能。数据广播编码器210对数据广播的数据进行编码。
影像编码器211具有对编排的节目的影像数据进行编码的功能。影像编码器211对编排的节目的影像数据进行编码。
音频编码器212具有对编排的节目的音频数据进行编码的功能。音频编码器212对编排的节目的音频数据进行编码。
字幕编码器213具有对编排的节目的字幕数据进行编码的功能。字幕编码器213对编排的节目的字幕数据进行编码。
控制信息生成单元214具有生成TLV分组以及MMT的控制信息的功能。TLV分组的控制信息是指与IP分组的复用相关的控制信息(也称为TLV-SI)，提供用于选台的信息、IP地址与服务的对应信息。此外，MMT的控制信息是指与MMT的插件的构成、广播服务关联的控制信息(也称为MMT-SI)。控制信息生成单元214生成包括控制信息的TLV分组以及MMT的控制信息的信号，该控制信息与作为音频编码器212、影像编码器211的编码对象的节目相关。
扰频器215具有如下功能：与CAS模块216协作对从音频编码器212输出的编码后的音频数据、从影像编码器211输出的编码后的影像数据进行扰频。
CAS模块216是生成扰频器215扰频时使用的密钥的模块。
复用器217具有如下功能：对由数据广播编码器210进行编码而生成的数据广播流、由影像编码器211对影像数据进行编码而生成的影像流、由音频编码器212对音频数据进行编码而生成的音频流、由字幕编码器213对字幕数据进行编码而生成的字幕流、以及由控制信息生成单元214生成的控制信息以MMT/TLV方式进行复用。复用器217生成对音频流、影像流、TLV分组以及MMT的控制信息进行了复用的TLV流。
发送单元218具有将由TLV流构成的广播信号作为广播波发送的功能。发送单元218对复用器217生成的TLV流进行16APSK等调制、纠错编码等传送路径编码处理并作为广播波发送。
图3是示意性示出利用本发明的实施方式的广播信号接收装置(单元)140的构成的图。广播信号接收装置140包括作为接收广播信号的接收功能的基本功能341以及控制单元342。
基本功能341包括：广播调谐器301、解复用器302、解扰器303、CAS模块304、数 据广播引擎305、影像解码器306、音频解码器307、字幕解码器308、控制信息分析单元309、GUI320、以及合成器326。
调谐器301具有接收由广播信号发送来的广播信号(TLV流)的功能。由调谐器301接收的广播信号输入解复用器302。
解复用器302具有将复用的TLV流分离为数据广播流、影像流、音频流、字幕流以及控制信息的功能。解复用器302将分离的数据广播流、影像流、音频流、数据广播流以及字幕流输入解扰器303、并将控制信息SI信号输入控制信息分析单元309。
解扰器303具有如下功能：与CAS模块304协作对输入的数据广播流、影像流、音频流以及字幕流进行解扰。解扰器303将解扰的数据广播流输入数据广播引擎305、将影像流输入影像解码器306、将音频流输入音频解码器307、并将字幕流输入字幕解码器308。
CAS模块304具有生成用解扰器303解扰时使用的密钥的功能。
数据广播引擎305具有对输入的数据广播流进行接收处理的功能。数据广播引擎305将接收的数据广播流转换成显示用数据并发送给合成器326。发送到合成器326的数据广播用数据与影像数据等合成并显示于显示单元350。
影像解码器306具有对输入的影像流进行解码(Decode)的功能。影像解码器306对影像流进行解码，生成显示于显示单元350的信号。
音频解码器307具有对输入的音频流进行解码的功能。音频解码器307对音频流进行解码，生成输出到扬声器351的信号。字幕解码器308对字幕流进行解码，生成显示于显示单元350的信号。
解码的影像信号、字幕信号以及数据广播用信号由合成器326合成并输出到显示单元350。此外，解码的音频信号输出到扬声器351。
控制信息分析单元309对作为广播信号的控制信息的SI信号进行分析。如果控制信息分析单元309对SI信号进行分析，则将其分析结果发送给控制单元342。
控制单元342对广播信号接收装置140的整体动作进行控制。此外，控制单元342将本发明的实施方式的CM替换装置330保持在内部并进行其控制。此外，控制单元342还对作为与网络130的I/F的网络I/F331、以及作为与外部设备的连接I/F的外部输入I/F332进行控制。
此外，控制单元342进行如下控制：根据CM替换装置330输出的替换控制信号，从保存在记录介质160中的替换CM中选择最适合于广播信号接收装置140的收看者的最佳替换CM，将能够置换为从管理服务器121接收的替换CM的时间段的CM置换并显示为选择的替换CM。
图4是在图1的构成中省略了网络系统并使替换CM系统的构成例简单化的图。
广播装置100向广播信号接收装置(电视接收机)140发送广播内容、内容ID以及CM提示时机(CM时段信息)。其中，内容ID是唯一地识别广播内容的ID，CM提示时机是表示包含在广播内容中的CM的提示时刻的信号(同时是表示能够插入替换CM的时间段的信号)。例如，CM时段信息可以经由管理服务器121(通过管理服务器121的网络收发装置121-4)发送。在此，CM时段信息未确定实际插入替换CM，在广播信号接收装置140中有时提示(显示)包含在广播信号中的默认CM。
广播信号接收装置140向CM发布用服务器120发送内容ID以及广播信号接收装置140 自身的接收装置ID。接收装置ID是唯一地识别该广播信号接收装置140的ID。因此，CM发布用服务器120也能够(例如在系统控制部120-4的控制下)根据本接收装置ID进行向广播信号接收装置140的CM的发送请求。
CM发布用服务器120将基于内容ID和接收装置ID生成的应当推荐的CM信息(推荐CM或替换CM)发送给广播信号接收装置140。该推荐CM是指具有该接收装置ID的接收装置的收看者在收看与该内容ID对应的节目(内容)时向该收看者提示的CM。CM发布用服务器120可以从广播装置100获取能够独自使用的替换CM时段信息。
首先，如果广播信号接收装置140开始接收内容(节目)，则预加载适合于内容的推荐CM并存储在存储器中。临时存储在存储器中的推荐CM(替换CM)与当前接收中的内容(节目)中的原始CM(允许替换原始CM时间段的CM)替换。即，临时存储在存储器中的推荐CM(替换CM)，可以用于替换当前接收中的内容(节目)中的原始CM，其中，原始CM可以是被允许替换的时间段内的CM。
使收看者与想要向该收看者提示的CM相关联的方法可以有多种。例如，将收看者A收看的节目类型、表演者、收看时刻等存储为收看日志，通过分析收看日志数据，确定收看者A的喜好性。如果了解了收看者A的喜好性，则能够推定有可能适合于收看者A的CM。根据该推定信息，能够设定CM的属性信息。因此，推定为有可能适合于收看者A的推荐CM不限于一个。有时存在多个。这种情况下，可以对推荐CM附加优先顺序。
在此，广播信号接收装置140始终将收看日志数据(例如通过管理服务器121的网络收发装置121-4)发送给收看日志数据库121a，收看日志数据库121a保管广播信号接收装置140的收看日志。CM推荐装置121b确定CM的属性时，参照从收看日志数据库121a输出的收看日志。CM的属性(例如)表示CM对象产品的类型、CM的表演者等，能够通过商业模式灵活地设定。例如，在收看日志数据库121a中，收看历史记录为体育节目时，收看者具有喜欢体育的喜好性。这种情况下，可以将运动服的CM、棒球或足球场的CM等属性与该节目(内容)相关联。
如上所述，在广播信号接收装置140中，包含在正片中的多个默认CM的一部分在CM替换允许期间替换为推荐CM。
在此，有时通过预加载时机的延迟或频道的切换，无法执行向推荐CM的替换。即，在某些情况下，由于预加载时机的延迟或频道的切换，会导致CM替换无法实现。此外，推荐CM的赞助商也希望知道推荐CM的收看状況。
因此，广播信号接收装置140向CM提示结果管理装置121c报告从CM发布用服务器120获取的CM的提示是成功还是失败。
此外，广播信号接收装置140预先将内容ID和接收装置ID的关联信息输出到CM发布用服务器120。由此，CM发布用服务器120能够构建接收装置和内容、以及对应的CM的相关信息。
上述说明叙述了一个例子。说明了广播信号接收装置140向CM发布用服务器120发送开始接收的内容的内容ID以及接收装置ID。这是为了快速执行预加载。在CM推荐装置121b与CM发布用服务器120之间有时也不存在时间延迟的问题。这种情况下，该内容ID、接收装置ID也可以通过CM推荐装置121b发送给CM发布用服务器120。即，在CM推荐装置121b与CM发布用服务器120之间有时不存在时间延迟(或在不考虑该时间延长的情况 下)，该内容ID、接收装置ID也可以通过CM推荐装置121b发送给CM发布用服务器120。
图5进一步详细示出了本实施方式的替换CM系统。
广播信号接收装置140通过广播接收部301-4(包括调谐器等)接收并解调广播信号，并且向选择部330a输出广播流。接收到装置ID与收看内容ID的管理部342b将接收的内容ID和接收装置ID发送给CM发布用服务器120。此外，CM选择控制部330d控制选择部330a。
网络收发装置331接收由CM发布用服务器120发送的推荐CM(也可以称为替换CM)，并输出到选择部330a。选择部330a基于来自CM选择控制部330d的控制信号，将推荐CM存储(预加载)在CM保存存储器330b中。
CM选择控制部330d控制CM保存存储器330b、开关SW、以及FIFO部(先进先出存储器)。CM选择控制部330d从解调的广播信号的服务数据中提取包含CM替换允许时段的CM时段信息。另一方面，包含CM替换允许时段的CM时段信息可以与每个节目同时发送，也可以事先与节目列表一起发送。包含CM替换允许时段的CM时段信息基本上可以从管理服务器121发送，也可以从CM插入服务器120发送。
CM选择控制部330d保存CM时段信息，如果接近CM替换时机，则通过开关330c执行将替换用的CM内容也写入FIFO部330e的处理。即，在FIFO部330e中，按照CM切换时机，执行广播流与推荐CM流的切换。并且，CM选择控制部330d在替换期间从FIFO部330e读出推荐CM流，在解码器315中进行解码。从FIFO部330e输出的信号经由解码器315、描绘部316提示在液晶面板等显示装置350中。
需要说明的是，在上述说明中，说明了与广播信号一起由广播信号接收装置140读入包含CM替换允许时段的CM时段信息，但也可以预先作为用于多个内容而保存在CM发布用服务器(CM插入服务器)120中，包含CM替换允许时段的CM时段信息可以预先保存在CM发布用服务器。并且，当CM发布用服务器120接收到由广播信号接收装置140开始播放的内容ID时，该CM发布用服务器120向对应的广播信号接收装置发送包含CM替换允许时段的CM时段信息。
另一方面，系统控制装置342进行CM保存存储器330b的控制以及收看日志的收集控制(收看日志收集部342a)，即系统控制装置342对CM保存存储器330b进行控制以及通过收看日志收集部342a对收看日志的收集进行控制。收看日志发送给外部的收看日志数据库121a。收看日志收集部342a能够根据收看的所述广播内容的收看日志的数据，生成确定替换CM的判断材料。此外，用户能够在此指定需要有意回避的替换CM的属性信息。需要说明的是，收看日志收集部342a可以设置于外部服务器(管理服务器121)。
系统控制装置342按照外部遥控器360的操作指示，实施广播信号接收装置整体的动作控制。
广播装置100在内部具有内容数据库，即，广播装置100的内部设置内容数据库。在本实施例中，作为一个例子示出了内容A、内容B以及内容C。广播装置100通过选择部131从这些内容中选择任意一个，通过编码器132进行编码，通过CM时机信息复用部134对CM时机信息(CM时段信息)进行复用，通过广播信号生成发送处理部135作为广播信号发送(以广播信号形式通过广播信号生成发送处理部135发送)。
管理服务器121具备系统控制部121-5，基本动作按照该控制部的命令而动作，即， 管理服务器121由系统控制部121-5通过命令进行控制，或通过系统控制部121-5实现其功能。管理服务器121具有收看日志数据库121a以及CM提示结果管理装置121c。管理服务器121内的CM推荐装置121b具备广播信号接收装置的ID管理部121-1以及收看倾向分析部121-2。此外，推定各广播信号接收装置的收看倾向时，制作与该收看倾向关联的推荐CM的属性信息(包含类型、表演者、制作者喜好等以及这些的组合的信息)(121-3)。
与一个广播信号接收装置对应的推荐CM不只是一个，有时可以存在多个。这种情况下，在多个推荐CM的属性信息中赋予了优先顺序。优先顺序按照收看次数、相似内容的收看次数等赋予了顺序。此外，多个推荐CM设定了数量上限。即，可以通过属性信息赋予多个推荐CM的优先顺序，优先顺序可以按照收看次数、相似内容的收看次数等排序。
这样，在将从广播信号接收装置140发送的接收装置ID、收看内容ID等与内部数据库进行比较或进行参考之后，确定收看者(广播信号接收装置)的收看倾向(喜好性)。接下来，计算(生成)根据该收看倾向(喜好性)类推并确定的推荐CM的属性信息(例如种类等)，并且与接收装置ID、内容ID等一起输出到CM发布用服务器120。需要说明的是，收看倾向数据库(收看者喜好数据库)利用保存在收看日志数据库中的各接收装置的收看日志，计算每个接收装置的收看倾向。
在CM发布用服务器120中，基于广播信号接收装置140发送的内容ID和与从CM推荐装置121b获得的内容ID对应的推荐CM属性，预先选择规定的CM。在本实施例中，将对应于内容A的CM与CMa1、CMa2、CMa3、对应于内容B的CM与CMb1、CMb2、CMb3、对应于内容C的CM与CMc1、CMc2、CMc3进行关联。这些关联与从广播信号接收装置140发送的内容ID相对应来进行关联，即，这些关联可以依靠从广播信号接收装置140发送的内容ID来对应实现。例如，从广播信号接收装置140发送内容A的ID时，通过从CMa1、CMa2、CMa3中选择对应于内容A的CM，确定应当向广播信号接收装置140发布的CM。
即、通过CM选择部120-1，根据内容ID和CM属性来选择规定的CM，经由编码器120-2并通过网络收发装置102-3，发送给广播信号接收装置140。
接下来，参照图6、图7、图8、图9A、图9B、图10，进一步说明各部分的动作。
图6是示出广播信号接收装置140与CM发布用服务器120的关系的流程图。首先，在广播信号接收装置140中，计算CM保存存储器330b的大小(也可以是当前剩余容量)(SA1)。接着，将广播信号接收装置ID以及接收的内容ID发送给CM发布用服务器120(SA2)，接收并保存所期望的多个推荐CM(SA3)。保存时，获取推荐CM的大小，并且获取与预先计算的推荐CM的保存存储器330b的大小相对应的多个推荐CM。此外，保存时，对CM的数量进行计数(SA3)。
如SB1、SB2所示，CM发布用服务器120根据来自广播信号接收装置140的请求，将适合于该广播信号接收装置和接收中的内容的推荐CM发送给广播信号接收装置140。
广播信号接收装置140检查是否存在内容的切换(SA4)。在存在切换的情况下，返回SA1。在这种情况下，可以清除CM保存存储器330b(SA5)，但也可以保留一部分的推荐CM。
在不存在内容的切换的情况下，监视是否到了推荐CM的提示时间(SA6)。在推荐CM的提示时间之前的情况下，即尚未到达推荐CM的提示时间，返回SA4。如果到了推荐CM的提示时间，则播放并提示优先级高的推荐CM(SA7)。接下来，检查存储在CM保存存储 器330b中的推荐CM的数量是否为“0”(SA8)。在存储的推荐CM的数量为“0”的情况下，CM替换功能结束(SA9)。在存储的推荐CM剩余的情况下，返回SA4，并待机到下一个CM时段的时间。
广播信号接收装置140将CM提示结果的实际情况发送给管理服务器121(SA10)。发送内容可以(例如)是提示了全部的推荐CM、或提示了到了优先顺序的第几位的推荐CM、或者提示失败(未能提示一个CM的完整期间)等。
图7示出了收看者的动作AU、广播信号接收装置140的动作以及CM发布用服务器120等的动作的时序图。在由收看者进行了频道切换AU1的时机(时候)，广播信号接收装置140提示选台的广播站的广播内容。并行地，广播信号接收装置140向CM发布用服务器120发送接收装置ID和内容ID，并开始CM的预加载。并行地，收看者进行播放内容正片收看(AU2)。预加载的CM保存在CM保存存储器330b中，根据由广播装置100发送的CM开始控制时刻dt2，从广播内容提示时刻dt1切换到CM保存存储器330b中保存的CM，并且实施替换CM的提示。并行地，收看者进行CM收看(AU3)。由此，成为CM提示时刻dt3状态。此外，根据CM结束控制时刻dt4，结束来自CM保存存储器330b的CM的提示，通过返回广播内容的提示时刻dt5，完成替换CM动作。并行地，收看者进行播放内容正片收看(AU4)。
在CM结束控制时刻dt4，按照图6中说明的动作，将CM提示结果通知给CM提示结果管理装置121c。如果该通知结束(CM提示结果通知时刻dt6)，则广播信号接收装置140准备下次的CM提示(下一CN提示的准备时刻dt7)，从CM保存存储器330b中设置优先级高的下次提示的替换CM。
图8是用于说明控制CM的提示时机的CM开始控制和CM结束控制的图。广播装置100发送包含在广播信号中的广播内容的时间戳。此外，广播装置100发送以该时间戳为基准在CM的提示时机发送由从内容的开始时点起的相对时刻所示的信息。
广播信号接收装置140使内部计数器与来自广播装置100的时间戳同步，其中，内部计数器又可以被称为内部计时器，可用于实现时间戳同步。并且，使内部计数器进行计数，达到作为所述CM的提示时机的所述相对时刻时(影像切换时点dt)，生成切换的时机信号。该时机(时刻)相当于图7的影像的切换的CM开始控制时刻dt2。在本动作中，由于进行了广播信号接收装置140的内部计数器与广播装置100的时间戳的时间同步，所以能够进行精度良好的切换。通过同样的动作，也实现了CM结束控制时刻dt4，即，通过类似的方式，也可以确定CM结束控制时刻dt4，并生成相应的信号。
可以将影像切换时点dt与包含在替换CM时段信息中的值进行比较来确定(是否执行)切换动作。由此，能够任意控制是输出包含在正片中的默认的CM、还是输出替换CM。
图9A和图9B示出了实现内容的正片与替换CM的切换的电路模块的例子。在图9A的实施方式中，在除了替换CM期间以外的期间，广播信号以开关330c、FIFO部330e、解码器315的路径进行解码。由于进行开关330e的切换控制，所以在替换CM期间，CM选择控制部330d进行控制，以便将从CM保存存储器330b读出的CM内容写入FIFO部330e并读出。相反(与此相对)，在除了替换CM期间以外的期间，CM选择控制部330d进行控制，以便将包含在广播信号中的广播内容写入FIFO部330e并读出。控制单元342进行FIFO部330e的动作开始以及解码器315的解码动作的控制。CM选择控制部330d基于CM开始 控制信息以及CM结束控制信息来控制开关SW。CM开始控制信息和CM结束控制信息是按照时间顺序从替换CM时段信息中读出的信息。
在图9A的实施方式中，替换CM与广播内容的正片的解码由同一解码器315进行。相对于此，作为解码器315A、315B，图9B的实施方式准备了对广播内容和替换CM进行解码的解码器。该解码器315A、315B以帧同步的方式动作。
解码器315A依次对广播内容进行解码。因此，也对包含在广播内容中的默认CM进行解码并输出。另一方面，解码器315B对从CM保存存储器330b读出的替换CM的内容进行解码。
这种情况下，CM选择控制部330d例如可以提前1帧或数帧先对替换CM进行解码，并在帧存储器(未做图示)中进行循环。并且，可以基于CM开始控制信息和CM结束控制信息来控制开关330g，实现CM替换。
例如，图10示出了在CM发布用服务器120内对内容分配了优选的CM的情况。在内容A中CM的CMa1、CMa2、CMa3相关联、在内容B中CM的CMb1、CMb2、CMb3相关联。在此，CMa1为属性1(体育运动)，CMa2为属性2(交通工具)，CMa3为属性3(服装)。此外，属性1(运动)被细分并与属性11(高尔夫)、属性12(棒球)、属性13(足球)相关联。此外，属性2(交通工具)也被细分并与属性21(汽车)、属性22(自行车)、属性23(铁路)相关联。此外，属性3(服装)也被细分并与属性31(成年男性)、属性32(成年女性)、属性33(儿童)相关联。同样，在内容B的CMb1、CMb2、CMb3中属性也相关联。
例如，与内容A关联的CM与在内容A中成为话题的内容关联的CM相关联。在内容A的情况下例如是如下故事：喜欢体育运动的出场人物X用豪华车追逐一名选手Y到达赛场。此外，存在出场人物X向选手Y赠送各种衣服的场景。
这种情况下，例如，收看者AU接收内容A并开始收看。此外，基于与收看者AU关联的收看日志等信息，判断为该收看者AU的接收装置的属性推荐属性13，即，基于与收看者AU关联的收看日志等信息，为与该收看者AU对应的接收装置推荐属性13。由此，在CM发布用服务器120内，从收看者AU的接收装置开始收看的内容ID(对应于内容A的)以及发送接收装置ID时与属性13对应的替换CM向收看者AU的接收装置发送，即，将内容ID与接收装置ID及与属性13对应的替换CM发送给与收看者AU对应的接收装置。上述情况是与足球相关的CM，例如是用于足球的服装、鞋、球、足球场等CM。如上所述，与广播内容关联的替换CM从基于广播内容的收看历史记录的分析结果的收看者的喜好性、以及与该喜好性具有相似性(可以是相似度高或者距离接近)的CM中确定，即，从基于广播内容的收看历史记录的分析结果的收看者的喜好性、以及与该喜好性具有相似性(可以是相似度高或者距离接近)的CM中确定与广播内容关联的替换CM。
接下来，以下记载包含于上述实施方式的多个观点。即，<观点A>(A1)例如如图5所示，其特征在于，具备：接收部301-4，接收并解调广播内容；收看日志收集部342a，生成收看了所述广播内容的收看历史记录；替换CM时段信息获取部，在播放所述广播内容期间内的CM期间，获取指示特别的分配期间的替换CM时段信息；CM保存存储器330b，从外部获取与所述广播内容关联的替换CM；以及开关330c，基于所述替换CM时段信息，在所述特别的分配期间选择所述替换CM用作播放，所述替换CM利用所述收看历史记录，基于收看倾向与CM的属性间的相似度来赋予优先级，即，所述替换CM基于所述收看历史 记录来确定，所述替换CM的优先级则基于收看倾向与CM的属性间的相似度来赋予。
根据上述观点A1，实现有效且高效的可寻址CM的提示。为了实现上述提示，可以利用从广播信号接收装置输出的收看日志的分析结果，分析各广播信号接收装置的收看倾向，能够选择并提供该广播信号接收装置的CM。即，通过进行分析的收看倾向与CM的属性信息的距离计算(相似度判定)，实施优先级高的广告提示。此外，判断CM的属性信息与广播内容(正片)具有的属性的相似性(近似性)，并且向各接收装置提示替换CM，因此能够提供更适合于收看者的替换CM(例如参照图10)。
这样，能够使广播内容(正片)与能够提示的CM相关联，即实际播放的CM能够与广播内容(正片)相关联，此外，由于在与正片内容相关联的CM中推荐应当提示的CM，所以CM的提供主体成为能够容易地反映广告意图的方式，即，CM的提供主体成为能够容易地反映广告意图。此外，计算CM的属性信息与根据以收看日志为基础的收看倾向计算的收看者侧的属性信息的距离(相似度判定)，基于该相似度，能够灵活地对应CM的替换、追加、删除等。
此外，可以选定CM的替换时机。即，也能够根据广播内容的场景来设定下一替换CM的时机。例如场景的内容为在餐厅品尝豪华美食的内容时，能够插入收看者所在街道的餐厅的替换CM。但是(进而)，在根据从收看者获取的问卷调查等，知道了喜欢的料理、不喜欢的食物时，能够提供供应喜欢的食物的餐厅的替换CM。
在(A2)上述观点(A1)中，所述CM时段信息获取部从外部服务器获取所述替换CM时段信息。
(A3)在上述观点(A1)中，所述替换CM获取部获取被赋予了播放优先顺序的多个替换CM。
(A4)在上述观点(A1)中，与所述广播内容相关联的替换CM从基于所述广播内容的收看历史记录的分析结果的收看者的喜好性、以及与该喜好性具有相似性的CM中确定，即，从基于广播内容的收看历史记录的分析结果的收看者的喜好性、以及与该喜好性具有相似性(可以是相似度高或者距离接近)的CM中确定与广播内容关联的替换CM。
(A5)在上述观点(A1)中，与所述广播内容相关联的替换CM从基于所述广播内容的收看历史记录的分析结果的收看者的喜好性、以及具有与该喜好性相关联的属性的CM中确定，即，从基于广播内容的收看历史记录的分析结果的收看者的喜好性、以及与该喜好性相关联的属性(可以是相似度高或者距离接近)的CM中确定与广播内容关联的替换CM。
<观点B>(B1)在上述观点(A1)中，例如，如图5、图7、图8所示，控制开关330c由CM选择控制部330d控制，选择所述替换CM或正片的任意一方。CM选择控制部330d基于所述替换CM时段信息进行动作。由此，开关330c在所述特别的分配期间，选择所述替换CM用作播放。
这种情况下，广播信号接收装置140的内部计数器与附随于所述广播内容发送来的相对时间戳(相对时刻信息)同步。并且，在该观点B1中，所述CM选择控制部330d是如下装置或方法：所述内部计数器的值到达替换CM时段信息的替换CM开始时刻时使替换CM的提示开始，并且所述内部计数器的值达到所述替换CM时段信息的替换CM结束时刻时使替换CM的提示结束，即当所述内部计数器的值到达替换CM时段信息的替换CM开始时刻 时，提示开始替换CM；并且当所述内部计数器的值达到所述替换CM时段信息的替换CM结束时刻时，提示结束替换CM。
在从正片的广播内容向广告切换时，可以考虑接收来自服务器的动态图像并进行提示的方式，但是切换时图像变得不连续而产生明显劣化。
但是，根据上述观点(B1)，通过在获取替换CM的CM保存存储器330b中，将广告临时保存在广播信号接收装置内部，能够顺畅地实施节目内容与从服务器获取的广告(之间)的切换。通过配合广告的切换时机，从接收机内部存储器进行提示，使动态图像的连续性不产生明显劣化。切换时机也使用了由现有数字广播实施的广播发送侧和接收机侧同步的内部计数器，因此能够提高切换时机的精度。
(B2)在上述的观点(B1)中，具备如下单元：在达到所述替换CM时段信息的替换CM结束时刻后，向外部服务器通知CM提示的结果是否成功。
(B3)在上述观点(B1)中，在替换CM预加载之前和预加载中，将CM保存存储器330b的容量通知管理服务器121或CM发布(插入)服务器120。该通知可以由CM选择控制部330d进行，也可以由系统控制部342进行。
因此，当CM保存存储器330b的剩余容量较少时，即，当从服务器120预加载的CM数量较多或数据量较多时，CM选择控制部330d或系统控制部342可以停止(中止)预加载。
或者，通过CM选择控制部330d或系统控制部342将CM保存存储器330b的容量逐次通知(给)管理服务器121或CM发布(插入)服务器120，管理服务器121或CM发布(插入)服务器120可以确定预加载的停止(中止)。这在替换CM发布用服务器120中准备了较多的替换CM时是有效的。
<观点C>(C1)在上述观点B1中，所述替换CM时段信息获取部从外部获取与所述广播内容相关联的替换CM，但在该获取之前，网络发送接收部331将CM保存存储器330b的当前剩余容量发送给CM发布用服务器120。CM发布用服务器120是如下装置或方法：在应当向广播信号接收装置140提示的替换CM为多个时，按照优先顺序从高到底的顺序，将与当前剩余容量相符合的替换CM的内容发送给广播信号接收装置140。
即使从广播信号接收装置140的观点出发也能实现这一点。即，广播信号接收装置140，具备：接收部，接收并解调广播内容；替换CM时段信息获取部，在播放所述广播内容的期间内的CM期间，获取指示特别的分配期间的替换CM时段信息；以及替换CM保存存储器，从外部获取并存储与所述广播内容相关联且与收看者喜好性相关联的替换CM。还具备CM选择部，所述CM选择部基于所述替换CM时段信息，在所述替换CM的所述分配期间播放所述替换CM。此外，还具备控制部，所述控制部在获取所述替换CM之前，监视所述CM保存存储器的剩余容量，并且在将所述替换CM存储到所述CM保存存储器时，存储优先级高的所述替换CM。
通常，将多个CM保存为动态图像内容时，需要大容量的存储器，但是在本方式中，通过在频道切换时由服务器进行预加载，能够利用小容量的存储器来实现。此外，通过预先测定广播信号接收装置侧的保存存储器的大小，能够灵活地设定保存的广告数量而容易实现。
另一方面，如果预加载失败，则由服务器获取的广告的提示失败，但是此时，通过提 示(播放)本来插入广播内容的广告，从而不会发生对收看者的图像质量的劣化。此外，发送广告侧接收广告提示成功或失败的通知，因此容易构建商业模式。尽管本方式是这种尽力而为的方式，但是动态图像都不会发生劣化，也不会对收看者不利。
需要说明的是，替换CM的优先级也能够根据CM公司和该CM提供者的意图来赋予。例如，能够对特定节目的收看者将想要观看的CM提高优先级。此外，也能够根据季节调整优先级。
(C2)在上述观点C1中，CM保存存储器330b的当前剩余容量为即使一个替换CM的内容都不能存储的容量时，向广播信号接收装置通知不能发送替换CM，即，CM保存存储器330b的剩余存储容量不足以存储一个替换CM的内容时，可以通知广播信号接收装置不发送替换CM。在这种情况下，广播信号接收装置140不实施CM替换处理而播放与广播信号一起发送来的默认CM。
(C3)即，通过向外部服务器通知CM保存存储器的剩余容量，所述外部服务器发送与所述替换CM的处理相关的信息，接收侧基于与该处理相关的信息进行动作。例如，仅存储优先级高的替换CM，或者不存储替换CM而播放包含在播放广播信号中的默认CM等。
需要说明的是，在图1所示的可寻址广告系统的构成例中，以如下情况为例进行了说明：广播站(广播信号发送装置)100发送通过MMT/TLV方式复用的广播波、广播信号接收装置140接收通过MMT/TLV方式复用的广播波，但是也可以是广播波通过MPEG-2方式复用的情况。或者在图1所示的可寻址广告系统的构成例中，广播站(广播信号发送装置)100可以通过网络130将节目内容发布给广播信号接收装置140。即，本发明中说明的广播内容除了地面波、卫星波之外也可以是在网络TV广播(IP广播)中发送来的广播内容。
此外，在图1所示的可寻址广告系统的构成例中是仅包括一个广播信号接收装置140的例子，但是也可以包括多个。在这种情况下，管理服务器121可以利用各广播信号接收装置140所具有的设备ID，识别并管理多个广播信号接收装置140。
此外，说明了本发明的实施方式的CM替换装置330包括(设置)在广播信号接收装置140中，但是也可以包括(设置)在能够与广播信号接收装置140通信且通过其设备ID能够识别各广播信号接收装置140的单独装置中。例如，该单独装置可以是管理服务器121。
在这种情况下，也可以由管理服务器121、CM发布用服务器120等中的任意一个准备CM替换允许时段信息(可以替换CM的时机信息)。此外，广播信号接收装置140可以具备通过用户操作能够禁止CM替换处理的功能。另外，可以设置替换CM的例如代表图像显示于显示单元350的功能。此外，当显示多个替换CM的代表图像时，用户能够通过操作，利用操作按钮对各代表图像指定“允许CM替换”、“不允许CM替换”等。进一步，可以在显示替换CM时设置显示存在替换CM的消息的功能。
对本发明的一些实施方式进行了说明，但这些实施方式只是作为示例提示的，并不旨在限定发明的范围。这些新的实施方式能够通过其他各种方式来实施，并在不脱离发明的主旨的范围内，能够进行各种省略、替换和改变。这些实施方式及其变形包含在发明的范围和主旨中，并包含在权利要求书记载的发明及其均等的范围内。此外，在权利要求的各构成要素中，将构成要素分割表现的情况、或组合多个表现的情况、或将它们组合表现的情况均属于本发明的范畴。此外，将权利要求作为控制逻辑表现的情况、作为包括使计算机执行的指令的程序表现的情况、以及作为描述所述指令的计算机可读记录介质表现的情 况也应用了本发明的装置。此外，对所使用的名称、术语也没有限定，只要是在实质上相同的内容或相同的宗旨，其他表现也包含在本发明中。
附图标记说明
100…广播站(广播信号发送装置)，120…CM发布用服务器(CM插入服务器)，121…管理服务器，140…广播信号接收装置，160…记录介质，330…CM替换装置。

Claims (10)

  1. 一种广播信号接收装置，包括：
    接收部，接收并解调广播内容；
    替换CM时段信息获取部，在播放所述广播内容的期间内的CM期间，获取指示特别的分配期间的替换CM时段信息；
    替换CM保存存储器，从外部获取并存储与所述广播内容相关联且与收看者喜好性相关联的替换CM；
    CM选择部，基于所述替换CM时段信息，在所述替换CM的所述分配期间播放所述替换CM；以及
    控制部，监视所述CM保存存储器的剩余容量，在将所述替换CM存储在所述CM保存存储器中时，存储优先级高的替换CM。
  2. 如权利要求1所述的广播信号接收装置，
    所述替换CM由外部服务器发送。
  3. 如权利要求1或2所述的广播信号接收装置，
    所述替换CM由外部服务器根据所述剩余容量限制发送。
  4. 如权利要求1或2所述的广播信号接收装置，
    控制部，监视所述CM保存存储器的剩余容量，在所述剩余容量不足以存储所有替换CM时，存储高优先级的替换CM。
  5. 一种广播信号接收装置，包括：
    接收部，接收并解调广播内容；
    替换CM时段信息获取部，在播放所述广播内容的期间内的CM期间，获取指示特别的分配期间的替换CM时段信息；
    替换CM保存存储器，从外部获取并存储与所述广播内容相关联且与收看者喜好性相关联的替换CM；
    CM选择部，基于所述替换CM时段信息，在所述替换CM的所述分配期间播放所述替换CM；以及
    控制部，将所述CM保存存储器的剩余容量通知外部服务器，并且将从所述外部服务器根据所述剩余容量限制发送来的所述替换CM存储在所述CM保存存储器中。
  6. 如权利要求4所述的广播信号接收装置，
    控制部，将所述CM保存存储器的剩余容量通知外部服务器，并且将从所述外部服务器发送来的多个所述替换CM中高优先级的所述替换CM存储在所述CM保存存储器中。
  7. 一种广播信号接收方法，应用于广播信号接收装置的控制部，所述方法包括：
    在播放所述广播内容的期间内的CM期间，获取指示特别的分配期间的替换CM时段信息；
    收集生成收看了所述广播内容的收看历史记录的收看日志；
    从外部向CM保存存储器获取与所述广播内容相关联的替换CM；
    基于所述替换CM时段信息，在所述分配期间选择所述替换CM用作播放；以及
    监视所述CM保存存储器的剩余容量，在将所述替换CM存储在所述CM保存存储器中时，存储优先级高的所述替换CM。
  8. 根据权利要求7所述的方法，存储优先级高的所述替换CM，包括：
    在所述剩余容量不足以存储所有替换CM时，存储高优先级的替换CM。
  9. 一种广播信号接收方法，应用于广播信号接收装置的控制部，所述方法包括：
    在播放所述广播内容的期间内的CM期间，获取指示特别的分配期间的替换CM时段信息；
    收集生成收看了所述广播内容的收看历史记录的收看日志；
    从外部向CM保存存储器获取与所述广播内容相关联的替换CM；
    基于所述替换CM时段信息，在所述特别的分配期间选择所述替换CM用作播放；以及
    将所述CM保存存储器的剩余容量通知外部服务器，并且将从所述外部服务器根据所述剩余容量限制发送来的一个或多个所述替换CM存储在所述CM保存存储器中。
  10. 根据权利要求9所述的方法，将从所述外部服务器根据所述剩余容量限制发送来的一个或多个所述替换CM存储在所述CM保存存储器中，包括：
    将所述外部服务器根据所述剩余容量限制发送来的多个所述替换CM，按照优先级次序存储在所述CM保存存储器中。
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